<template>
  <div class="login">

    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">蓝天智慧物业管理系统</h3>
      <el-form-item prop="username">
        <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号">
        </el-input>
      </el-form-item>

      <el-form-item prop="password">
        <el-input v-model="loginForm.password" type="password" auto-complete="off" placeholder="密码" @keyup.enter.native="handleLogin">
        </el-input>
      </el-form-item>

      <el-form-item prop="loginCode" v-if="captchaOnOff">
        <el-input v-model="loginForm.loginCode" auto-complete="off" placeholder="验证码" style="width: 63%" @keyup.enter.native="handleLogin">
        </el-input>
        <div class="login-code">
          <img title="图片看不清？点击一下试试" :src="codeUrl" @click="getCode" style="width:86px;height:29px;cursor:hand;" class="login-code-img" />
        </div>
      </el-form-item>

      <el-form-item style="width:100%;">
        <el-button :loading="loading" size="medium" type="primary" style="width:100%;" @click.native.prevent="handleLogin">
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
      </el-form-item>
    </el-form>

    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2018-2021 lantian.com All Rights Reserved.</span>
    </div>

  </div>
</template>

<script>
import Cookies from "js-cookie";

export default {
  name: "Login",
  data() {
    return {
      codeUrl: "",
      loginUrl: "http://localhost:8080/login",
      userUUID: "",

      cookiePassword: "",

      loginForm: {
        username: "admin",
        password: "admin123",
        rememberMe: false,
        loginCode: "",
        uuid: "",
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", message: "请输入您的账号" },
        ],
        password: [
          { required: true, trigger: "blur", message: "请输入您的密码" },
        ],
        loginCode: [
          { required: true, trigger: "change", message: "请输入验证码" },
        ],
      },
      loading: false,
      // 验证码开关
      captchaOnOff: true,
      // 注册开关
      register: false,
    };
  },

  methods: {
    handleLogin() {
      this.$refs.loginForm.validate((valid) => {
        console.log(valid);
        if (valid) {
          this.loading = false;
          this.$http
            .post("http://localhost:8080/login", {
              username: this.loginForm.username,
              password: this.loginForm.password,
              loginCode: this.loginForm.loginCode,
              uuid: this.loginForm.uuid,
            })
            .then((result) => {
              const data = result.data;
              if (data.status == 400) {
                this.$message.error(err);
              } else if (data.status == 200) {
                Cookies.set("username", this.loginForm.username);
                this.$router.push("/index");
              }
            })
            .catch((err) => {
              this.$message.error(err);
            });
        }
      });
    },

    // 获取验证码，需要在钩子函数调用
    getCode() {
      let uuid = Math.random() * 100000000000000000;
      this.$http
        .get("http://localhost:8080/VerifyCode/getCode?uuid=" + uuid, {
          responseType: "blob",
        })
        .then((result) => {
          let url = window.URL.createObjectURL(new Blob([result.data]));
          this.codeUrl = url;
          console.log(result);
          this.loginForm.uuid = uuid;
        });
    },
  },
  mounted() {
    this.getCode();
  },
};
</script>

<style lang="less" scoped>
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login-background.jpg");
  background-size: cover;
}
.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;
  .el-input {
    height: 38px;
    input {
      height: 38px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 38px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}
.login-code-img {
  height: 38px;
}
</style>
